from logging.config import fileConfig

from alembic import context
from sqlalchemy import engine_from_config, pool

from app.config import get_settings
from app.database import Base

config = context.config
if config.config_file_name is not None:
    fileConfig(config.config_file_name)
target_metadata = Base.metadata
settings = get_settings()
database_url = settings.database_url.replace('postgresql://', 'postgresql+psycopg://')
config.set_main_option('sqlalchemy.url', database_url)

def run_migrations_offline() -> None:
    url = config.get_main_option('sqlalchemy.url')
    context.configure(url=url, target_metadata=target_metadata, literal_binds=True, dialect_opts={'paramstyle': 'named'})
    with context.begin_transaction():
        context.run_migrations()

def run_migrations_online() -> None:
    connectable = engine_from_config(config.get_section(config.config_ini_section, {}), prefix='sqlalchemy.', poolclass=pool.NullPool)
    with connectable.connect() as connection:
        context.configure(connection=connection, target_metadata=target_metadata)
        with context.begin_transaction():
            context.run_migrations()
if context.is_offline_mode():
    run_migrations_offline()
else:
    run_migrations_online()